1. Of course I'm speculating--based on the Writer's Guide and TMoST stating explicitly that the E was built in space and based on Probert's statement. You are speculating based on other things. Oh, and goose? Take a gander:
Guess the deflector must be a rocket, too.
3. Again, I can speculate if you can--based on scientific principles they teach in middle school.
4. VOY? F*ck VOY. I dibn't have to suspend anything because I seldom watched it. Not really a TNG fan, either. I AM a NuTrek fan, just not uncritically.
Some changes are bigger than others...